Datasheet

LT1073
14
+
100Ω100k
100µF
1M*
40.3k*
909k*
100k*
100k
1073 TA17
LT1073
I
LIM
V
IN
SW1
FB
AO
SET
SW2GND
3V
1N5818
* 1% METAL FILM
†
L1 = GOWANDA GA10-682k
OR CADDELL-BURNS 7300-11
L1
†
68µH
5V OUTPUT
100mA
LOCKOUT
AT 1.8V
2N3906
2.2M
+
680k
5V OUTPUT
20mV
P-P
RIPPLE
40.2k*
909k*
100µF
OS-CON
1073 TA18
LT1073
I
LIM
V
IN
SW1
SETAO
FB
SW2GND
1.5V
L1
†
82µH
* 1% METAL FILM
†
L1 = GOWANDA GA10-822k
OR CADDELL-BURNS 7300-12
1N5818
+
680k 220Ω
5V
OUT
90mA AT 6.5V
IN
40.2k*
909k*
100µF
OS-CON
1073 TA20
LT1073
I
LIM
V
IN
SW1
SETAO
FB
SW2GND
L1
†
47µH
* 1% METAL FILM
†
L1 = GOWANDA GA10-472k
OR CADDELL-BURNS 7300-09
1N5818
+V
IN
6.5V TO 12V
EFFICIENCY ≈ 80%
I
Q
≈ 130µA
OUTPUT NOISE ≈ 100mV
P-P
220Ω
1073 TA22
LT1073
I
LIM
V
IN
SW1
FB
SW2GND
L1
†
150µH
0.1µF
0.1µF
0.1µF
24k 10k
50Ω
Q1
2N2369
C1
2pF TO 4pF
OUTPUT
5V INTO
50Ω PULSE
WIDTH ≈ 1ns
MUR120
MUR120
MUR120
10M
1M
1.5V
†
L1 = TOKO 262LYF-0095K
SELECT Q1 AND C1 FOR OPTIMUM RISE AND FALL
90V BIAS
560k
6V OUTPUT
1A AT
V
IN
= 3V
1073 TA21
LT1073
I
LIM
V
IN
SW1
SETAO
FB
SW2GND
549k*
L1
†
25µH
* 1% METAL FILM
†
L1 = COILTRONICS CTX25-5-52
LOW I
Q
(<250µA)
1N5820
+
+
INPUT
3V TO 6V
(2 LITHIUM CELLS)
1000µF
2200µF
20k*
5.1k
MTP3055EL
2N3906
1N5818
51Ω
TYPICAL APPLICATIO S
U
3V to 5V Step-Up Converter with Undervoltage Lockout
1.5V to 5V Low Noise Step-Up Converter
1.5V to 5V Very Low Noise Step-Up Converter 9V to 5V Reduced Noise Step-Down Converter
3V to 6V at 1A Step-Up Converter 1.5V Powered 350ps Risetime Pulse Generator
+
680k
5V OUTPUT
5mA AT V
BATTERY
= 1V
10mV
P-P
RIPPLE
40.2k*
909k*
100µF
OS-CON
1073 TA19
LT1073
I
LIM
V
IN
SW1
SETAO
FB
SW2GND
1.5V
L1
†
470µH
* 1% METAL FILM
†
L1 = GOWANDA GA10-473k
OR CADDELL-BURNS 7300-21
EFFICIENCY = 83% AT 5mA LOAD
1N5818